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A Checklist Of Parasites Of California, Oregon, And Washington Marine And Estuarine Fishes, Milton S. Love, Mike Moser

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This report is a summary of the published records of parasites found from the marine and estuarine fishes of California, Oregon, and Washington. Coverage has not been limited to the western United States, but rather includes parasite reports from throughout each fish's range. Included is a host-parasite list and parasite-host cross index.

We have produced this survey because we felt there was a need for a single source which would list all the parasites infecting marine and estuarine fish from California, Oregon, and Washington. Pertinent sources are scattered over a number of journals, covering many years. Workers find it time …

Identification Of Four Complementary Rna Species In Akabane Virus-Infected Cells, Asit K. Pattnaik, G. Abraham

School of Veterinary and Biomedical Sciences: Faculty Publications

The analysis of RNA extracted from purified Akabane virus demonstrated the presence of three size classes of single-stranded RNAs with sedimentation coefficients of 31S (large, L), 26S (medium, M), and 13S (small, S). Molecular weights of these RNA species were estimated to be 2.15 x 10⁶,1.5 X 10⁶, and 0.48 x 10⁶ for the L, M, and S RNAs, respectively. Hybridization analysis involving viral genomic RNA and RNA from virus-infected cells resulted in the identification of four virus-specific cRNA species in infected cells. These cRNAs were found to be nonpolyadenylated by their inability to bind …

Agricultural Experiment Station News August 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
FACULTY DEVELOPMENT LEAVES
STATION NAME CHANGE PROPOSED
FIELD LABORATORY TASK FORCE
NAME THE NEW EVENT
NATIONAL RESEARCH PRIORITIES
FACULTY DEVELOPMENT LEAVE REPORT
PROJECT REVIEWS
GOVERNOR SUPPORTS AG RESEARCH
AGRONOMY DEPARTMENT HEAD SEARCH
BUDGET REALLOCATION
GRANTS & CONTRACTS
NEW OR REVISED PROJECTS
PROJECT ACCOMPLISHMENTS
PANHANDLE STATION DIRECTOR POSITION

Biosynthesis And Degradation Of Storage Protein In Spores Of The Fungus Botryodiplodia Theobromae, Gary Petersen, Kurt Dahlberg, James L. Van Etten

Department of Plant Pathology: Faculty Publications

Muiridin, a spore-specific protein of the fungus Botryodiplodia theobromae, comprises about 25% of the mature pycnidiospore protein. It has an apparent molecular weight of 16,000 to 17,000 and is rich in glutamine, asparagine, and arginink. Muiridin is synthesized in developing spores via a precursor with an apparent molecular welght of 24,000. Two other polypeptides present in young developing spores with apparent molecular weights of 18,000 and 15,000 are immunologically related to muiridin. We propose a pathway for muiridin synthesis. Muiridin is actively degraded during the germination of spores from 30-day old cultures. This degradation is independent of exogenous amino …

Rhizonema Sequoiae N. Gen. N. Sp. From Coast Redwood Sequoia Sempervirens (D. Don) Endl., I. Cid Del Prado Vera, B. F. Lownsbery, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Rhizonema sequoiae n. gen. n. sp. is described from the roots of Coast Redwood, Sequoia sempervirens (D. Don) Endl., growing near Lake Lagunitas, Marin County, California. Rhizonema females are annulated over their entire bodies, are wholly embedded in host tissue, and secrete an abundant amount of gel material. Mature females do not form a cyst. The vulva is located on a large posterior terminal cone, and the anus is on the dorsal vulval lip. Esophageal glands of the second-stage larvae fill more than half of the body cavity. Tails of the vermiform males are blunt, and a cloacal tubus is …

Escherichia Coli Strains Producing Streptococcus Mutans Proteins Responsible For Colonization And Virulence, Roy Curtiss Iii, Robert G. Holt, Raul G. Barletta, James P. Robeson, Shigeno Saito

School of Veterinary and Biomedical Sciences: Faculty Publications

Streptococcus mutans is a principal etiologic agent of dental caries and is likely one of the most ubiquitous bacterial infectious disease agents worldwide. The ability of S. mutans to colonize the oral cavity is due to sucroseindependent and sucrose-dependent adherence to the pellicle-coated tooth surface with glucan facilitated aggregation between cells to result in plaque. Cariogenicity is then caused by the ability of S. mutans in plaque to metabolize free sugars and both extra and intracellular complex carbohydrates to yield predominantly lactic acid. The S. mutans gene products that contribute to colonizing ability and thus virulence include glucosyltransferases, glucanbinding proteins, …

Aspects Of The Biology Of The Red Drum, Sciaenops Ocellatus, In Mississippi, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Several hundred specimens of the red drum from Mississippi were critically assessed. Regression equations for standard-length (SL) versus total-length differed between males and females and between small and large members of the same sex. Asingle regression line represented the weight-SL relationship for males with females. For condition coefficients to be helpful, fish had to be grouped at least by sex, season, and length or stage of maturity. By 12 months of age, most fish were about 30 to 32 cm SL and their distribution ranged throughout Mississippi Sound rather than being restricted to inshore bayou and marsh habitats like younger …

Aspects Of The Biology Of The Spotted Seatrout, Cynoscion Nebulosus, In Mississippi, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

About 3,000 specimens of the spotted seatrout from Mississippi Sound and adjacent water grouped by males and females had a nearly identical standard Iength (SL) versus total length (TL) relationship, although the equation for males in winter differed from that for those in other seasons. When investigating the SL-weight relationship, some differences occurred both among seasons and between sexes. Therefore, condition coefficients (K) were calculated to compare male and female groups according to their length and state of maturation on a seasonal basis. The hepatosomatic index (HSI) tended to increase with fish length, with relatively high values occurring in winter …

Organization Of Sporulated Oocysts Of Eimeria Funduli In The Gulf Killifish, Fundulus Grandis, William E. Hawkins, John W. Fournie, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Oocysts of Eimeria funduli were studied by transmission electron microscopy in naturally-infected livers of the Gulf killifish, Fundulus grandis. Tissues were cryo-processed because membranous structures in the oocyst appear to hinder routine fixation and embedment. The oocyst wall (about 25 nm thick) was adjacent to the host cell and consisted of an outer membrane that limited the host cell cytoplasm and an inner membrane separated from the outer membrane by a narrow space. In some specimens, dense material was applied to the inner face of the inner membrane. Individual sporocysts were surrounded by a membranous "veil" (about 25 nm …

Evaluation Of The Status Of Texanocotyle Pogoniae And Laterocotyle Padreinsulae (Trematoda: Aspidogastridae), Sherman S. Hendrix, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Simpson and McGraw (1979, Southwest. Nat. 24: 557-562) erected two genera for two new species of aspidogastrid trematodes infecting the black drum, Pogonias cromis (Linnaeus), along the Texan Gulf of Mexico coast. Examination of holotypes and paratypes of each reveals that the two species have been described previously and that the genera are invalid.

Review Of The Grizzlies Of Mount Mckinley By Adolph Muire, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Review of The Grizzlies of Mount McKinley by Adolph Murie. U.S. Department of the Interior, National Park Service, Scientific Monograph Series No. 14. U.S. Government Printing Office, Washington, D.C., 1981. xvi, 251 p., ill.

Agricultural Experiment Station News March 1983

Agricultural Research Division: News and Annual Reports

CONTENTS:
AES ADVISORY COUNCIL
FACULTY SENATE COMMITTEES
ASSOCIATE DIRECTOR POSITION
NEWSWORTHY PROJECTS
NEW PROJECTS
GRANTS AND CONTRACTS
BUDGET MEETINGS SCHEDULED FOR APRIL
SCIENTIFIC EQUIPMENT INVENTORY

Two Transcription Products Of The Vesicular Stomatitis Virus Genome May Control L-Cell Protein Synthesis, David D. Dunigan, Jean M. Lucas-Lenard

Nebraska Center for Virology: Faculty Publications

When mouse L-cells are infected with vesicular stomatitis virus, there is a decrease in the rate of protein synthesis ranging from 20 to 85% of that in mock-infected cells. Vesicular stomatitis virus, irradiated with increasing doses of UV light, eventually loses this capacity to inhibit protein synthesis. The UV inactivation curve was biphasic, suggesting that transcription of two regions of the viral genome is necessary for the virus to become inactivated in this capacity. The first transcription product corresponded to about 373 nucleotides, and the second corresponded to about 42 nucleotides. Inhibition of transcription of the larger product by irradiating …

Coccidia From Kangaroo Rats (Dipodomys Spp.) In The Western United States, Baja California, And Northern Mexico With Descriptions Of Eimeria Merriami Sp. N. And Isospora Sp., Carla A. Stout, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Since January 1975, 104 of 361 (29%) kangaroo rats (Dipodomys spp.) examined for coccidia had oocysts in their feces. These included 32 of 71 (45%) D. agilis from California (3 of 8, 38%) and Baja California Norte (29 of 63, 46%); none of 18 D. deserti from Sonora, Mexico; one of one D. gravipes from Baja Norte; 43 of 124 (35%) D. merriami from California (1 of 4, 25%), New Mexico (16 of 49, 33%), Baja Norte (12 of 23, 52%), Baja Sur (6 of 20, 30%), and Sonora, Mexico (8 of 28, 29%); 17 of 103 (17%) D. …

Centrorhynchus Kuntzi From The Usa With Description Of The Male And Redescription Of C. Spinosus (Acanthocephala: Centrorhynchidae), Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Centrorhynchus kuntzi Schmidt and Neiland, 1966, reported here for the first time from the USA, occurred in Bubo virginianus in Florida and Buteo jamaicensis, Buteo lineatus, and Buteo platypterus in Louisiana. Centrorhynchus kuntzi males, previously undescribed, were 10 to 29 mm long with a large swelling near the anterior end of the trunk. The proboscis, averaging 1.14 mm in length and with a marked swelling near the middle at the level of proboscis receptacle insertion, was armed with 26 to 31 (usually 29) longitudinal rows of 22 to 26 (usually 24) hooks each. The first seven to nine …

Infectious Pancreatic Necrosis (Ipn) Of Salmonid Fishes, Phillip E. Mcallister

United States Fish and Wildlife Service: Publications

Infectious pancreatic necrosis (IPN) is a viral disease principally associated with salmonids, although IPN and lPN-like viruses have been isolated from various nonsa1rnonid fish and marine invertebrates. Acute infection occurs in 1- to 4-month-old salmonids and can result in cumulative mortality approaching 100%. In contrast, fish 6 months old or older can undergo subclinical or inapparent infection, but experience no significant mortality. Survivors of the disease can become lifelong carriers of the virus. Epizootics of IPN have been reported worldwide, and several virus serotypes are recognized. The disease known as IPN was probably first described by M'Gonigle (1941) as acute …

Cranes Of The World: 7. Endangered Species And Conservation, Paul A. Johnsgard

Cranes of the World by Paul A. Johnsgard

Few families of birds, other than some associated with small island archipelagos, have such a large proportion of their species in danger of extinction as does the crane family. Of the 14 extant species of cranes, King (1979) regards two full species (whooping crane and Siberian crane) as endangered, three more (Japanese, hooded, and white-naped) as vulnerable, and the black-necked crane as of indeterminate status. Additionally, one race (the Mississippi) of the sandhill crane is classified as endangered, and the Cuban race is regarded as rare and local. Thus, more than a third of the world's crane species are currently …

Ec83-220 1983-84 Dairy Report

University of Nebraska-Lincoln Extension: Historical Materials

Extension Circular 83-220 contains the 1983-84 dairy report.

Heligmosomoides Thomomyos Sp. N. (Nematoda: Heligmosomidae) From Pocket Gophers, Thomomys Spp. (Rodentia: Geomyidae), In Oregon And California, Scott L. Gardner, Douglas Jasmer

Scott L. Gardner Publications

The nematode Heligmosomoides thomomyos sp. n. is described from the small intestine of Thomomys bulbivorus and T. bottae. This is the first report of Heligmosomoides from rodents of the family Geomyidae.

Nematodes of the genus Heligmosomoides Hall, 1916 occur most commonly in arvicolid rodents. Of the 26 known species of the genus, 11 have been recorded from Nearctic rodents (Rausch and Rausch, 1973). In North America, Heligmosomoides spp. have been recorded not only from voles, but also from cricetids and murids. Heligmosomoides spp. characteristically inhabit the small intestine or cecum of their host, where they usually are found …

Gastrointestinal Helminths Of The Cougar, Felis Concolor L., In Northeastern Oregon, Robert L. Rausch, C. Maser, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Helminths of nine species were identified from 39 cougars obtained in northeastern Oregon (Walbowa, Baker, and Union counties), viz., Taenia omissa Lühe, 1910 (100%); T. ovis krabbei Moniez, 1879 (61%); T. hydatigena Pallas, 1776 (10%); Mesocestoides lineatus (Goeze, 1782) (5%); Toxascaris leonina (von Linstow, 1902) (69%); Toxocara cati (Schrank, 1788) (15%); Physaloptera praeputialis von Linstow, 1889 (13%); Pterygodermatites affinis (Jagerskiold, 1904) (ca. 2%); and Trichinella sp. (larvae) (ca. 2%). In addition, undeveloped cestodes of the genus Taenia in 26 animals had lost rostellar hooks and could not be identified. Host-records, prevalence, and biological characteristics of some of the helminths are …

Occurrence And Pathogenicity Of Heligmosomoides Spp. (Nematoda: Heligmosomidae) Associated With Cecal Villi In Arvicolid Rodents, Robert L. Rausch, M. L. Johnson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The host response to the nematodes Heligmosomoides hudsoni (Cameron, 1937) and H. johnsoni Rausch and Rausch, 1973 (Heligmosomidae) was investigated in their natural hosts, varying lemmings, Dicrostonyx spp., and heather voles, Phenucomys intermedius Merriam (Rodentia: Arvicolidae), respectively. The nematodes occupy the cecum of the host, where they coil tightly around the long cecal villi. In individual animaIs, the comparatively few villi occupied became much enlarged, exhibiting severe hyperplasia of the mucosa and other microscopic changes, as described. The mechanism of pathogenesis involved three factors: strangulation of the villi, pressure atrophy, and chronic irritation by the crests of the synlophe. In …

Cuticular Ridge Patterns Of Nematodirus (Nematoda: Trichostrongyloidea) Parasitic In Domestic Ruminants Of North America, With A Key To Species, J. R. Lichtenfels, P. A. Pilitt

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The six species of Nematodirus parasitic in domestic ruminants of North America have been identified previously on the basis of characteristics of the bursa and tips of the spicules, and females could not be identified. In an effort to find additional diagnostic characteristics of both sexes, cuticular ridges were studied with light and scanning electron microscopy and in whole mounts and cross sections. After the cuticular ridges of males were characterized, females were matched with males by means of cuticular ridges, except for the rare species N. davtiani. Five of the six species have variations of an 18-ridge bilaterally …

A New Species Of Chronogaster Cobb, 1913 (Nemata : Plectidae) With An Amended Diagnosis Of The Genus And Discussion Of Cuticular Ornamentation, Armand R. Maggenti, Dewey J. Raski, Puthenkandathil K. Koshy, Varghese K. Sosamma

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Chronoguster spinicorpus n. sp. is described from soil about the roots of coconut palm in Kerala, India. It is distinguished from all other species of Chronogaster by its longitudinal rows of spines. The stability of the genus Chronogaster is discussed with stress on internal anatomy and distribution of cephalic sensillae as generic characteristics. Most external ornamentation is judged to be diagnostic for species only.

Description d’une nouvelle espèce de Chronogaster Cobb, 1913 (Nemata : Plectidae), diagnose énzendée du genre et considérations sur l’ornementation cuticulaire

Description est donnée de Chronogaster spinicorpus n. sp., venant de sol de rhizosphère de cocotier, au …

An Unusually Small Egg-Carrying Callinectes Sapidus In The Northern Gulf Of Mexico, Robin M. Overstreet, Harriett M. Perry, Gerald Adkins

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This communication reports the smallest verified egg-carrying specimen of Callinectes sapidus. With a carapace 20 mm long by 47 mm wide, the female measures considerably less than most other mature individuals, but about the same as an average-sized individual infected with an adult specimen of the rhizocephalan Loxothylacus texanus.

Taxonomy And Life Histories Of Two North American Species Of "Carneophallus" (=Microphallus) (Digenea: Microphallidae), Richard W. Heard, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Discusses the taxonomy and life histories of two North American species of Carneophallus" (=Microphallus) (Digenea: Microphallidae).

United States Naval Medical Research Unit Number Three, Cairo, Egypt, Medical Zoology Department Translation List, Harry Hoogstraal

United States Naval Medical Research Unit 3: Publications

List of translations of medical parasitology and medical entomology papers prepared by the United States Naval Medical Research Unit Number 3 in Cairo, Egypt. The papers were translated from numerous languages, such as Russian (most were translated from Russian), Bulgarian, Chinese, Czech, Finnish, French, German, and Japanese, into English. The publication dates of the original papers ranged from about 1915 to 1983. Harry Hoogstraal translated some or all of the papers.

Microbiological Water Quality Of Impoundments: A Literature Review, G. Allen Burton Jr.

United States Public Health Resources

Assessing the microbiological water quality of impoundments and the potential for waterborne disease outbreaks is a difficult task when using traditional sampling programs. Problems associated with using fecal coliform bacteria as indicators of human pathogen presence complicates assessments of future water quality in preimpoundment areas. Reliable determination of future and present microbiological water quality requires knowledge of how the chemical, physical, and biological characteristics of the watershed and impoundment interrelate to influence microbial indicator and pathogen densities. Accurate estimates of microbial indicator and pathogen densities, obtainable by using the enumeration methods and their modifications suggested in this report, will allow …

Haliotrema (Monogenea: Ancyrocephalinae) From Ostraciid Fishes In Guadeloupe, West Indies, Jean Claude Vala, Claude Maillard, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Six sympatric species of Haliotrema Johnston and Tiegs, 1922 are described from ostraciid fishes in Guadeloupe, West Indies. All have a basic cone-shaped cirrus, but characteristics of that and other terminal genitalia plus those of anchors can differentiate them: H. guadeloupensis sp. n. from Lactophrys triqueter (typehost) and L. bicaudalis; H. torridum sp. n. from L. triqueter (type-host) and Acanthostracion polygonius; H. glandulosum sp. n. from L. triqueter (type-host) and L. bicaudalis; H. minutum sp. n. from A. polygonius; H. lactophrys (MacCallum, 1915) comb. n. from A. polygonius and A. quadricornis which is transferred from the genus Ancyrocephalus Creplin, 1839; …

Eimeria From Jumping Mice (Zapus Spp.): A New Species And Genetic And Geographic Features Of Z. Hudsonius Luteus, Donald W. Duszynski, Gary Eastham, Terry L. Yates

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Of 103 jumping mice (Zapus spp.) examined, 29 (28.2%) had coccidian oocysts in their feces: one of seven (14%) Z. trinotatus eureka from Humboldt Co., California; 25 of 60 (42%) Z. princeps princeps, including seven of 18 (39%) from Boulder Co., Colorado, and 18 of 42 (43%) from Santa Fe and Taos Cos., New Mexico; and three of 36 (8%) Z. h. luteus, including one of one from Sandoval Co., New Mexico, two of 13 (15%) from Apache Co., Arizona, and none of 22 from Otero and Soccoro Cos., New Mexico. Twenty-eight of 29 infected mice had …

Intestinal Absorption Of Β-Methyl-D-Glucoside In Rats Infected With Eimeria Nieschulzi, Donald W. Duszynski, K. Ramaswamy, Gilbert A. Castro

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Covers the intestinal absorption of β-methyl-D-glucoside in rats infected with Eimeria nieschulzi.